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lF. H. BROWN. FILE-CUTTING MALHIN'E.l

No.174,060. Patented Feb.z9,1e7e.

' Erg! M Je s. 2 C y L' a U GD v I/ 12'@ f I, .j n S w m C Q :3 O I Il J'" C@ 'f @D N. PETERS. FHOTO-LITNDGRAPHEH. WASHINGTON. D. C.

n Ofrliuliaiiapolis,

' deal" n 2, "S'ht l i carricrshiften Y mad-e les are nnavoiilahly cut with some deperience in the use of ,files inotlieire spects consists ofthe means,

after set forth, employedto tances apart, and not lying FRANKLINH BROWN, on

inninnnrotis, iNnrAnA;

nn Puoi/Ente r in `tu El-fen riinxie-inl/iennits.` i t Specication `fornring part of LettersPatent No. Ulfblkilhj` october 17,1874.

Tonuwhom it may concern: u

Bei-t Lknown that I, FRANKnIN H. BROWN, i the county of Marion and State oflndiana, have invented certain new and useful Improvements in File-Machines,

ofvnhich improvements the following is a full, andexact description, which will enable- Q tllels -sk-irlfled inthe art to apper-tains -to 4make and usethe said improvewhich my invention ments, reference beinghad tothe accompanying' A draw-ing for-ming a par-t hereoand in Wh-ich-` Figure 1, Sheet 1 is a side elevation of a i le-r'n achine embodying my invention; Fig. a top orplan View ofthe saine;- Ijig. f 3, Sheet `2, -a vertical longitudinal section.

`thetrame. `'llhese .ext

e e and entering the -By this means the thereofFig. 4:,gSheet2, a bottom lviewof Like letters of reference indicate like parts. 4The `groovesand burrs or serrationsin handgrec of irregularity, although regularity injthis respect isr lusually aimed at. `The operation of' h and-istherefore tedious and expensive. g v` `lamaware thatmuch of this `laborand exfpense has been avoided bycuttingfthe serra- `1 tions :by means of machines, but the files thus madeare cutwith mechanical accuracy. EX- of (both of these;

\ eccentric onmthe shaft of 'the cutter.

:play therein.

classeshas i lemonstrated that the irregularity with `which the senrations in lhandanaile iiles I arecut lrendersthelatter superiorto those cut `by machinery. 4VS7-hen the `serrations Vare regular thework-manfby movingthe iilein a line parallel to those in `which the `serrations lie,`i s i liable-to@leave ridges on the surface upon his` Work 5 gbutif the""serrations do not lie in parallel :li-hesthis result 'cannot'happe-n.

AMy Objectis-to make a tilemachine `whereyl `byiles'nl ayebe made possessing `this advantage of hand-made files, and to improve the construction and operation of' the machines To this end, myinvention substantially ashereinproduce grooves, burrs, or-serrations at irregularly-varying dis in parallel lines. It also consists in certain other novel `features relating to the-construction of the machine,

n substantially as hereinafter specified.

dated February 29,187.6; application fi-led- In thedrawing, A represents the ,traine of "the machine. "BPB are vertical ex'ten'sionsfo'' nsdnslie in Opposite arcs of' the same circlehasshown in Figlz, are Slotted, as' .Shown at D. iS"a and E E are sliding blocls ill `Which i as bearings, the blockS.1b.Ciljg arranged in the ,Slots C' e Meiner-anais passing ver@ cally through the upper part ofthe extensionsBBQ` n n, ets in them, arranged to correspond to one or more of the pertorations e c. and c @"are removable pinspassing through the perforations sockets inthe blocks Shaft maybe adjusted t0 lie across the frame in a lineat a A less anglo thereto. F is the driy lGris the cutter. `The cutter is x 1nf o nin 5'4 d on v,an l). 'l;h ecutter-blade is preferably vertically adjustable onfits stock. El is an arm extending laterally from thestock 'place thereon by means ofthe collar t.. face of' the fpiece I which is adjacent to the frame is rolinded-to correspondto theibrni of {the frame that point." The piece lisalso verticallyfslottekl to .Slot beinglong enough to 7c is a slot in the frame A, and

k is a pin resting inthesaidfslot andentering thear'm H. nut is run upon the o'uterfend of `the pin kf, tohold the arm H iirinly inits place.

The lower endof the piece I is held `forward iOf 'its upper @ed humans of the niet@ .and lthe cutter is thus inclined and held in abfo'ut ,the Same DQSitiu ift @unies 'define `th 0peration of cutting thegiles by hand.H The point at which the arm H, o`r a piv'otalprojection therefromfentes the slot in the `piece I coinciding with the The wenn@ the eccentricon which the cutter is mounted isin, or nearly in, a lin cutting-edge of the cutter.

gives the llatter its stroke, and tilts itforward slightly about the time its downward movement ceases. rlhe lower end or edgeof the cutter is only slightly tilted, if at all, for the reason that the arm H enters the slot It ata point'in, or nearly in, a line with-the said edge. This edge, therefore, is not subjected to such have small SOCR- cremeren rrr-wheel.

AIis a pendent piece loosely mounted on the shaft D, alu-lis held inits f That www@ the farm Hfglle allow the ann t0' the shaft lastv named passes 2 |114,oco

a strain as will be likely to injure it during the tilting movement ofthe critter, the strain fa-llingnponV the-'arm H. The part just above the cutting-edge, however, tilts suciently to raise a b urr ,on the ridges cut.

1' is a. grooved' way, prvoted to the crosspiece l" at thel point l, and passing through slots in the ends of the frame A, said slots .being considerably longer than the said way is broad, so that thelatterlrnay swing horizonl centers the supports should be correspondingly shallow.- The anvil-supports may be re-4 lmovable.

L is a'clamp, carried by the rack J, and Lis a file-blank, held by the clamp and resting freely on the anvil, or on a cushion thereon. u a are pins, projecting f'rom the way l'.v The rack J and the parts carried by it-follow ,the movement of the way I whenI the latter is turned nits pivot. ,M is a pitman,.driven by a crank-arm projecting from the end ot' the shaft D. This arm terminates in a ball, which is yinclosed in a socket in the lower end of the pitman. The upper end of the pitmanis connected to abell crank,N, by means of a universaljoint., The vertical arm of the bell-crank is slotted, as, shown. lO is a connecting-arm, jointed to a sliding block adjustable on the slotted arm of the bell-crank. R

' is a vertically-adjustable pawl or dog. R' R' are loosely-mounted and irregularly-serrated wheels, on which the pawl R rests. S is a friction-wheel, rigidly mounted on'the shaft of the'pinion J. S is a lever, through which freely. The upper part of this lever is slotted, as shown; ands is a pin, passing through this slotinto the arm AOp T is a friction-pawl, pivoted to a ilateraldarm projecting from the lever S', as

shown. This pawl rests on the wheel S. l" is a stop-paw] lor dog, preventing the rotation of the wheel yS, except in onel direction; and U U are hooks, performing the same function. in connectionwith the Wheels R R'.

When theshaft D is rotated, the pitman M communicates its motion tol the bell-crank, and the latter draws the arm O back and forth. The movement of the arm O tilts the lever S back and forth, and this movement results in carrying forward the rack J and the file-blank step by step toward the cutter; consequently a new groove, serration, or burr is cut in the blank by each downward stroke of the cutter. The dog or pawl lt, by resting on the Wheels R R', carries one or more of these wheels forward one notch each time a cut is made in the blank, 'and thenrests on a succeeding notch, the latter being either slightly higher or lower than the preceding notch.

A By this means the pin sis shifted to a higher or lower position in the lever S', and the stroke of thelatt'er is thus varied, andA this variation results in making unequal spaces between the cuts made in the blank. Without the employment of 'othen mechanism, however, the cuts would be parallel to each other..

A is. a block pivoted to the cross-bar B'. C is a pin turning freely in the block A.

This pin is so shouldered as to be prevented from beingmoved longitudinally in its bearings, and its central part is screw-threaded,A as shown in Fig. 4. D is a nut or block on the threaded part of the pin C. The block D moves in a slot in the block A when the pin C' is turned. A pin, d, projects from the block D into a groove in the way I. The

,slot in which the block D moves, and the groove into which the pin d projects, extend the long way of the parts into which the said slot and groove are out. E' is a weight connected to an arm on one end of the block A by means ot' a chain 'passing over an antifriction-roller, as shown in Fig. 2.' F is a lever pivoted to the frame A. One end of this ,lever is bent and beveled to ride in the notches of the wheels R' R', and the other is j connected to the block A by means of the chain F" also passing over a frictionroller.

When the wheels R' R are rotated, the lever F is set in motion, and this motion is communicated to the block A', to the way I', and

to the rack J and its attachments, thus moving the {ile-blank in such a manner that all of its serrations will not lie in lines parallel to each other; The degree with which these serrations vary from parallel lines may be controlled by setting the pin d a greater or less distance from the point L.

is caused by reason of the irregularity of the notches in the wheelsR R', in whichnotches one end of the lever F' rests, being held therein by the weight E'. y

The stroke of the lever S may be controlled either by adjusting the inner end of the said. lever at a greater or less height in the slotted arm of the bell-crank N, or by setting it at a greater or less height in the pawl or dog R.

It will now be perceived, from the foregoing description, that the movement of all the parts is derived from the rotation of the shaft D; that the said shaft .is adjustable for the purpose of so strike the Vblankat any desired angle; that the movement of the cutter is such that it not only entersthe blank, but turns a burr on the upper edge of each ridge it makes therein that the serrations in the blank will not only vary from each other irregularly with reference to the spaces between them, but

that they will not all liein parallel lines; and

The irregularity of the movement of the way 1" upon its pivot setting the cutter that it will e.

` rated, and slotted extensions stantia-lly as and for thepurposes specified.

2. `The combination of the eccentric shaft D, cutter G, arm H, vertically-slotted pendant f I, and extensions B B, having therein the horizontal slot V7i: to receive a pin projecting from lthe said pendant.

'3. The combination of the vertically-sliding anvilthe longitudinally-sliding and laterallyrocking anvil-supports, having their supporting edges formed to correspond to the swell of the blanks, the cutter, and the blank-clamp or carrier, substantially as and for the purposes specified.

t 4. The combination of one or more ra ged or irregularly-serrated wheels R R with the feeding mechanism, for the purpose of thereby rendering irregular the serratious out into the blank.1

-5. The combination of the pitman M, bellcrank N, adjustable arm O, and feed-lever S',

substantially as desribetbfor the purpose of f thereby controlling' the stroke of the latter.'

6. The combination of one or more Wheels R R', the lever F', the pivoted-bloek A connected to the said lever and provided with the adjustable pin d, the pivoted way I enteref] by the said pin, and the Weight E', subt stantially as and for the purposes set forth.

`FRANKLIN H. BRDWN.`

l Witnesses F. F. WARNER, N; C. GRmLEY. 

